338 lines
94 KiB
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338 lines
94 KiB
XML
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<mods:title id="11C6D5107C6958789D9E4390F96FC3CF">Jasmineira filatovae Levenstein, 1961, the deepest known sabellid is a Potamethus Chamberlin, 1919: redescription, new combination and generic emendation</mods:title>
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<mods:namePart id="CF0C66E26323AA26A7961750D3B52843">Tovar-Hernandez, Maria Ana</mods:namePart>
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<mods:affiliation id="08EBEE989E392EF32BCFE0028F245468">Facultad de Ciencias Biológicas, Laboratorio de Biosistemática, Universidad Autónoma de Nuevo León, Av. Pedro de Alba esq. Manuel L. Barragán, San Nicolás de los Garza, 66455, Nuevo León, México</mods:affiliation>
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<mods:namePart id="EE7E455C1A3F8F54A6A5F28BF151519C">Jirkov, Igor A.</mods:namePart>
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<mods:affiliation id="9167E1D0F6677D7B613ACFF711B501AD">Department of General Ecology and Hydrobiology, Biological Faculty, Leninskiye Gory, 1, building 12, Moscow State University, Moscow, 119234, Russia</mods:affiliation>
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<taxonomicName id="4C6633DDFF842B588B8375A0FD413F9A" authority="(Levenstein, 1961)" authorityName="Tovar-Hernandez & Jirkov" authorityYear="2024" baseAuthorityName="Levenstein" baseAuthorityYear="1961" box="[151,642,907,934]" class="Polychaeta" family="Sabellidae" genus="Potamethus" kingdom="Animalia" order="Sabellida" pageId="1" pageNumber="49" phylum="Annelida" rank="species" species="filatovae" status="comb. nov.">
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<emphasis id="B912944CFF842B588B8375A0FE553F99" bold="true" box="[151,406,907,934]" italics="true" pageId="1" pageNumber="49">Potamethus filatovae</emphasis>
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(
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<bibRefCitation id="EFF735AFFF842B588AB175A0FDB93F9A" author="Levenstein, R. Y." box="[421,634,907,933]" pageId="1" pageNumber="49" pagination="147 - 178" refId="ref10955" refString="Levenstein, R. Y. (1961) Polychaeta from deep water in the Bering Sea. Trudy Instituta Okeanologia, Akademia nauk SSSR, 46, 147 - 178. [in Russian]" type="journal article" year="1961">Levenstein, 1961</bibRefCitation>
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)
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,
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<taxonomicNameLabel id="A2212937FF842B58898475A0FCA53F9A" box="[656,870,907,933]" pageId="1" pageNumber="49" rank="species">new combination</taxonomicNameLabel>
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<subSubSection id="C37C1BD5FF842B588B837584FEDF3FF5" box="[151,284,943,970]" pageId="1" pageNumber="49" type="description">
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<paragraph id="8BD9485EFF842B588B837584FEDF3FF5" blockId="1.[151,870,907,970]" box="[151,284,943,970]" pageId="1" pageNumber="49">
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<figureCitation id="135D54DBFF842B588B837584FEDF3FF5" box="[151,284,943,970]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStart-4="FIGURE 5" captionStartId-0="2.[151,250,1792,1816]" captionStartId-1="3.[151,249,1752,1776]" captionStartId-2="5.[151,250,1792,1816]" captionStartId-3="6.[151,250,1535,1559]" captionStartId-4="7.[151,250,1531,1555]" captionTargetBox-0="[201,1391,181,1768]" captionTargetBox-1="[241,1347,181,1728]" captionTargetBox-2="[198,1390,181,1768]" captionTargetBox-3="[151,1435,181,1512]" captionTargetBox-4="[151,1436,181,1507]" captionTargetId-0="figure-23@2.[196,1391,181,1768]" captionTargetId-1="figure-32@3.[236,1352,181,1728]" captionTargetId-2="figure-32@5.[198,1390,181,1768]" captionTargetId-3="figure-23@6.[151,1435,181,1512]" captionTargetId-4="figure-32@7.[151,1436,181,1507]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="5" captionTargetPageId-3="6" captionTargetPageId-4="7" captionText-0="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." captionText-1="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." captionText-2="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." captionText-3="FIGURE 4. Light microscopy of thoracic chaetae of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Collar chaetiger, B) narrowly hooded chaetae from collar, C) paleate chaetae, D) chaetiger 3, E) paleate chaetae." captionText-4="FIGURE 5. Scanning electron and light microscopy images of abdominal chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Abdominal chaetiger 8 with inferior group of chaetae remarked with a rectangle, B–D) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 8; E) abdominal chaetiger 3, F) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 3, G) abdominal chaetiger 17, H) dentition of uncini from abdominal chaetiger 7, I) dentition of uncini from abdominal chaetiger 17, J) uncini from abdominal chaetiger 1, K) uncini from abdominal chaetiger 12, L) uncini from abdominal chaetiger 45, L). SEM:A–I. Light microscopy: J–L. Scale bars: A, E, G) 100 μm, B, C, F) 30 μm, D) 3 μm, H–L) 10 μm. Arrows in J and K point to uncinal humps." figureDoi-0="http://doi.org/10.5281/zenodo.13209691" figureDoi-1="http://doi.org/10.5281/zenodo.13209693" figureDoi-2="http://doi.org/10.5281/zenodo.13209695" figureDoi-3="http://doi.org/10.5281/zenodo.13209697" figureDoi-4="http://doi.org/10.5281/zenodo.13209701" httpUri-0="https://zenodo.org/record/13209691/files/figure.png" httpUri-1="https://zenodo.org/record/13209693/files/figure.png" httpUri-2="https://zenodo.org/record/13209695/files/figure.png" httpUri-3="https://zenodo.org/record/13209697/files/figure.png" httpUri-4="https://zenodo.org/record/13209701/files/figure.png" pageId="1" pageNumber="49">Figures 1–5</figureCitation>
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</paragraph>
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<taxonomicName id="4C6633DDFF842B588B8375DFFDDA3834" ID-CoL="3QM9K" authority="Levenstein, 1961" authorityName="Levenstein" authorityYear="1961" box="[151,537,1011,1036]" class="Polychaeta" family="Sabellidae" genus="Jasmineira" kingdom="Animalia" order="Sabellida" pageId="1" pageNumber="49" phylum="Annelida" rank="species" species="filatovae">
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<emphasis id="B912944CFF842B588B8375DFFEA63833" box="[151,357,1012,1036]" italics="true" pageId="1" pageNumber="49">Jasmineira filatovae</emphasis>
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<bibRefCitation id="EFF735AFFF842B588A7E75DFFDDA3834" author="Levenstein, R. Y." box="[362,537,1011,1036]" pageId="1" pageNumber="49" pagination="147 - 178" refId="ref10955" refString="Levenstein, R. Y. (1961) Polychaeta from deep water in the Bering Sea. Trudy Instituta Okeanologia, Akademia nauk SSSR, 46, 147 - 178. [in Russian]" type="journal article" year="1961">Levenstein, 1961</bibRefCitation>
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</taxonomicName>
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, 173, fig. 10.—
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<treatmentCitation id="0AC76E4FFF842B5889BB75DFFCBA3834" author="Hartman, O." box="[687,889,1011,1036]" page="77" pageId="1" pageNumber="49" year="1965">
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<bibRefCitation id="EFF735AFFF842B5889BB75DFFCBA3834" author="Hartman, O." box="[687,889,1011,1036]" pageId="1" pageNumber="49" pagination="1 - 197" refId="ref10443" refString="Hartman, O. (1965 a) Catalogue of the polychaetous annelids of the world. Supplement 1960 - 1965 and index. Occasional Papers of the Allan Hancock Foundation, 23, 1 - 197." type="journal article" year="1965">Hartman, 1965a: 77</bibRefCitation>
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</treatmentCitation>
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(catalogue).—
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<treatmentCitation id="0AC76E4FFF842B588F1975DFFAC43834" author="Levenstein, R. Y." box="[1037,1287,1011,1036]" page="75" pageId="1" pageNumber="49" year="1966">
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<bibRefCitation id="EFF735AFFF842B588F1975DFFAC43834" author="Levenstein, R. Y." box="[1037,1287,1011,1036]" pageId="1" pageNumber="49" pagination="3 - 131" refId="ref10991" refString="Levenstein, R. Y. (1966) Polychaeta from Western part of the Bering Sea. Trudy Instituta Okeanologia, Akademia nauk SSSR, 81, 3 - 131. [in Russian]" type="journal article" year="1966">Levenstein, 1966: 75–76</bibRefCitation>
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</treatmentCitation>
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.—
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<treatmentCitation id="0AC76E4FFF842B588E3175D8FEE13815" author="Levenstein, R. Y." page="60" pageId="1" pageNumber="49" year="1969">
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<bibRefCitation id="EFF735AFFF842B588E3175D8FEE13815" author="Levenstein, R. Y." pageId="1" pageNumber="49" pagination="52 - 62" refId="ref11027" refString="Levenstein, R. Y. (1969) Polychaeta. In: Kort, V. G. (Ed.), Biology of the Pacific Ocean. Part 2. The deep-sea bottom fauna and pleuston. Nauka, Moscow, pp. 52 - 62. [in Russian]" type="book chapter" year="1969">Levenstein, 1969: 60</bibRefCitation>
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</treatmentCitation>
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(table).—
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<treatmentCitation id="0AC76E4FFF842B588A9D7239FDB33815" author="Levenstein, R. Y." box="[393,624,1042,1066]" page="132" pageId="1" pageNumber="49" year="1973">
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<bibRefCitation id="EFF735AFFF842B588A9D7239FDB33815" author="Levenstein, R. Y." box="[393,624,1042,1066]" pageId="1" pageNumber="49" pagination="128 - 135" refId="ref11081" refString="Levenstein, R. Y. (1973) On the Polychaete Fauna of the Aleutian, Japan and Indo-Bornean Trenches of the Pacific Ocean. Trudy Instituta Okeanologia, Akademia nauk SSSR, 91, 128 - 135." type="journal article" year="1973">Levenstein, 1973: 132</bibRefCitation>
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</treatmentCitation>
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(table).—
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<treatmentCitation id="0AC76E4FFF842B5889C37239FC333815" author="Capa, M. & Murray, A." box="[727,1008,1042,1067]" page="124" pageId="1" pageNumber="49" year="2015">
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<bibRefCitation id="EFF735AFFF842B5889C37239FC333815" author="Capa, M. & Murray, A." box="[727,1008,1042,1067]" pageId="1" pageNumber="49" pagination="98 - 167" refId="ref9900" refString="Capa, M. & Murray, A. (2015) A taxonomic guide to the fanworms (Sabellidae, Annelida) of Lizard Island, Great Barrier Reef, Australia, including new species and new records. Zootaxa, 4019 (1), 98 - 167. https: // doi. org / 10.11646 / zootaxa. 4019.1.8" type="journal article" year="2015">Capa & Murray, 2015: 124</bibRefCitation>
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</treatmentCitation>
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(table).—
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<treatmentCitation id="0AC76E4FFF842B588F437239FAF03815" author="Alalykina, I. L." box="[1111,1331,1042,1066]" page="200" pageId="1" pageNumber="49" year="2020">
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<bibRefCitation id="EFF735AFFF842B588F437239FAF03815" author="Alalykina, I. L." box="[1111,1331,1042,1066]" pageId="1" pageNumber="49" pagination="175 - 212" refId="ref9361" refString="Alalykina, I. L. (2020) Polychaeta: A review of the deep sea benthic polychaetes along the NW Pacific. In: Saeedi, H. & Brandt, A. (Eds.), Biogeographical Atlas of the Deep NW Pacific Fauna. Advanced Books, Pensoft Publishers, Sofia, pp. 175 - 212. https: // doi. org / 10.3897 / ab. e 51315" type="book chapter" year="2020">Alalykina, 2020: 200</bibRefCitation>
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</treatmentCitation>
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(table).—
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<bibRefCitation id="EFF735AFFF842B588BD3721AFEB23876" author="Capa, M. & Kupriyanova, E. & Nogueira, J. M. M. & Bick, A. & Tovar-Hernandez, M. A." box="[199,369,1073,1097]" pageId="1" pageNumber="49" refId="ref9832" refString="Capa, M., Kupriyanova, E., Nogueira, J. M. M., Bick, A. & Tovar-Hernandez, M. A. (2021) Fanworms: Yesterday, Today and Tomorrow. Diversity Special Issue Systematics and Biodiversity of Annelids, 13 (3), 130. https: // doi. org / 10.3390 / d 13030130" type="journal volume" year="2021">
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Capa
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<emphasis id="B912944CFF842B588A167219FEF63876" box="[258,309,1073,1097]" italics="true" pageId="1" pageNumber="49">et al.</emphasis>
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2021
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</bibRefCitation>
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: supplementary file (catalogue).
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</paragraph>
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|
||
<emphasis id="B912944CFF842B588B83727BFEAD3857" box="[151,366,1104,1128]" italics="true" pageId="1" pageNumber="49">Potamethus filatovae</emphasis>
|
||
</taxonomicName>
|
||
—
|
||
<treatmentCitation id="0AC76E4FFF842B588A9C727BFD883857" author="Belyaev, G. M." box="[392,587,1104,1128]" page="181" pageId="1" pageNumber="49" year="1989">
|
||
<bibRefCitation id="EFF735AFFF842B588A9C727BFD883857" author="Belyaev, G. M." box="[392,587,1104,1128]" pageId="1" pageNumber="49" refId="ref9556" refString="Belyaev, G. M. (1989) Deep-Sea Oceanic Trenches and Their Fauna. Nauka Publishing House, Moscow, 255 pp. [in Russian]" type="book" year="1989">Belyaev, 1989: 181</bibRefCitation>
|
||
</treatmentCitation>
|
||
(table).
|
||
</treatmentCitationGroup>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37C1BD5FF842B588B837291FE6A3993" pageId="1" pageNumber="49" type="materials_examined">
|
||
<paragraph id="8BD9485EFF842B588B837291FE8538EC" blockId="1.[151,326,1209,1236]" box="[151,326,1209,1236]" pageId="1" pageNumber="49">
|
||
<emphasis id="B912944CFF842B588B837291FE8538EC" bold="true" box="[151,326,1209,1236]" pageId="1" pageNumber="49">
|
||
<typeStatus id="54DDF6FCFF842B588B837291FF1738EB" box="[151,212,1210,1236]" pageId="1" pageNumber="49">Type</typeStatus>
|
||
material
|
||
</emphasis>
|
||
</paragraph>
|
||
<paragraph id="8BD9485EFF842B588B837329FE6A3993" blockId="1.[151,1437,1282,2028]" pageId="1" pageNumber="49">
|
||
[
|
||
<materialsCitation id="3B0E4203FF842B588B897329FE663993" collectingDate="1950-08-25" collectingDateMax="1950-09-25" collectingDateMin="1950-08-25" collectionCode="R, V" elevation="3940" latitude="58.65" location="Bering Sea" longLatPrecision="1043" longitude="177.71666" municipality="Vitjaz" pageId="1" pageNumber="49" specimenCount="15" typeStatus="holotype">
|
||
Shirshov Institute of Oceanology]
|
||
<location id="8EB91E85FF842B5889237329FD793923" LSID="urn:lsid:plazi:treatment:03CFF948FF842B5D8B8375A0FD9E3FBE:8EB91E85FF842B5889237329FD793923" box="[567,698,1282,1308]" latitude="58.65" longLatPrecision="1043" longitude="177.71666" municipality="Vitjaz" name="Bering Sea" pageId="1" pageNumber="49">Bering Sea</location>
|
||
,
|
||
<collectionCode id="ED77D09BFF842B5889DE7329FD1F3923" box="[714,732,1282,1308]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="1" pageNumber="49">R</collectionCode>
|
||
/
|
||
<collectionCode id="ED77D09BFF842B5889F17329FD3B3923" box="[741,760,1282,1308]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="1" pageNumber="49" type="Museum">V</collectionCode>
|
||
<collectingMunicipality id="6BBDD224FF842B5888107329FC893923" box="[772,842,1282,1308]" pageId="1" pageNumber="49">Vitjaz</collectingMunicipality>
|
||
, St. 618,
|
||
<date id="FFD86E9EFF842B5888D47329FBF73922" box="[960,1076,1282,1309]" pageId="1" pageNumber="49" value="1950-09-25">
|
||
<collectingDate id="EF9C9776FF842B5888D47329FBF73922" box="[960,1076,1282,1309]" pageId="1" pageNumber="49" value="1950-09-25">25/9/1950</collectingDate>
|
||
</date>
|
||
,
|
||
<quantity id="4C9EE5BBFF842B588F517329FB623923" box="[1093,1185,1282,1308]" metricMagnitude="3" metricUnit="m" metricValue="3.94" pageId="1" pageNumber="49" unit="m" value="3940.0">
|
||
<elevation id="004BAF6DFF842B588F517329FB623923" box="[1093,1185,1282,1308]" metricMagnitude="3" metricUnit="m" metricValue="3.94" pageId="1" pageNumber="49" unit="m" value="3940.0">3940 m</elevation>
|
||
</quantity>
|
||
,
|
||
<geoCoordinate id="EE522E99FF842B588FA57329FAD73922" box="[1201,1300,1282,1309]" degrees="57" direction="north" minutes="30" orientation="latitude" pageId="1" pageNumber="49" precision="925" value="57.5">57°30’N</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="EE522E99FF842B588E317329FA5F3923" box="[1317,1436,1282,1308]" degrees="168" direction="east" minutes="30" orientation="longitude" pageId="1" pageNumber="49" precision="925" value="168.5">168°30 ‘E</geoCoordinate>
|
||
(
|
||
<typeStatus id="54DDF6FCFF842B588B8B730DFECB397F" box="[159,264,1318,1344]" pageId="1" pageNumber="49" type="lectotype">lectotype</typeStatus>
|
||
INV0003597 and
|
||
<specimenCount id="9D6083D7FF842B588ACA730DFD54397F" box="[478,663,1318,1344]" count="7" pageId="1" pageNumber="49" type="generic" typeStatus="paralectotype">7 paralectotypes</specimenCount>
|
||
INV0001520, 3 of them with intact branchiae) and
|
||
<collectionCode id="ED77D09BFF842B588FFA730DFAC3397F" box="[1262,1280,1318,1344]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="1" pageNumber="49">R</collectionCode>
|
||
/
|
||
<collectionCode id="ED77D09BFF842B588E1D730DFADF397F" box="[1289,1308,1318,1344]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="1" pageNumber="49" type="Museum">V</collectionCode>
|
||
Vityaz, St. 539,
|
||
<date id="FFD86E9EFF842B588BC77361FE8B395A" box="[211,328,1354,1381]" pageId="1" pageNumber="49" value="1950-08-25">
|
||
<collectingDate id="EF9C9776FF842B588BC77361FE8B395A" box="[211,328,1354,1381]" pageId="1" pageNumber="49" value="1950-08-25">25/8/1950</collectingDate>
|
||
</date>
|
||
,
|
||
<quantity id="4C9EE5BBFF842B588A437361FE71395B" box="[343,434,1354,1380]" metricMagnitude="3" metricUnit="m" metricValue="3.812" pageId="1" pageNumber="49" unit="m" value="3812.0">
|
||
<elevation id="004BAF6DFF842B588A437361FE71395B" box="[343,434,1354,1380]" metricMagnitude="3" metricUnit="m" metricValue="3.812" pageId="1" pageNumber="49" unit="m" value="3812.0">3812 m</elevation>
|
||
</quantity>
|
||
,
|
||
<geoCoordinate id="EE522E99FF842B588AD67361FDE6395A" box="[450,549,1354,1381]" degrees="58" direction="north" minutes="39" orientation="latitude" pageId="1" pageNumber="49" precision="925" value="58.65">58°39’N</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="EE522E99FF842B5889217361FD63395B" box="[565,672,1354,1380]" degrees="177" direction="east" minutes="43" orientation="longitude" pageId="1" pageNumber="49" precision="925" value="177.71666">177°43‘E</geoCoordinate>
|
||
(
|
||
<specimenCount id="9D6083D7FF842B5889A17361FCB3395B" box="[693,880,1354,1380]" count="8" pageId="1" pageNumber="49" type="generic" typeStatus="paralectotype">8 paralectotypes</specimenCount>
|
||
INV0001521). Bottom temperature 1.56°C and 1.62°C, respectively; bottom salinity 34.60‰ and 34.71‰, respectively; sediment composed of fine silt and claydiatom silt, respectively
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37C1BD5FF842B5D8BD3739EFD9E3FBE" lastPageId="4" lastPageNumber="52" pageId="1" pageNumber="49" type="description">
|
||
<paragraph id="8BD9485EFF842B588BD3739EFB9139EF" blockId="1.[151,1437,1282,2028]" box="[199,1106,1461,1488]" pageId="1" pageNumber="49">
|
||
<emphasis id="B912944CFF842B588BD3739EFEAE39F0" bold="true" box="[199,365,1461,1487]" pageId="1" pageNumber="49">Redescription</emphasis>
|
||
(based on
|
||
<typeStatus id="54DDF6FCFF842B588AFC739DFD9139EF" box="[488,594,1462,1488]" pageId="1" pageNumber="49" type="lectotype">lectotype</typeStatus>
|
||
, with variation of
|
||
<typeStatus id="54DDF6FCFF842B58880A739DFC0339EF" box="[798,960,1462,1488]" pageId="1" pageNumber="49" type="paralectotype">paralectotypes</typeStatus>
|
||
in brackets).
|
||
</paragraph>
|
||
<paragraph id="8BD9485EFF842B588BD373F1FE583BD3" blockId="1.[151,1437,1282,2028]" pageId="1" pageNumber="49">
|
||
Body slightly flattened dorso-ventrally. Body length excluding crown 66 (15–85) mm,
|
||
<quantity id="4C9EE5BBFF842B588FBE73F1FB2E39CB" box="[1194,1261,1498,1524]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="1" pageNumber="49" unit="mm" value="3.0">3 mm</quantity>
|
||
wide. Radiolar crown 24 (15–65) mm long. Crown composed of semi-circular radiolar lobes fused dorsally. Twelve (8–25) pairs of radioles not fused by an inter-radiolar membrane, not arranged into a spiral, without eyes or flanges. Radiolar tips entire, filiform (
|
||
<figureCitation id="135D54DBFF842B588A68706DFE153A5F" box="[380,470,1606,1632]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Fig. 1G</figureCitation>
|
||
). Marginal base of crown with parallel lamellae bordering ventrally (
|
||
<figureCitation id="135D54DBFF842B588FF5706DFAFE3A5F" box="[1249,1341,1606,1632]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1B</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B588E5E706DFA533A5F" box="[1354,1424,1606,1632]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2D, E</figureCitation>
|
||
). Anterior and posterior peristomial rings distinctly elongated (
|
||
<figureCitation id="135D54DBFF842B58882A7041FC5B3ABB" box="[830,920,1642,1668]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1C</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B5888B77041FC2B3ABB" box="[931,1000,1642,1668]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2A, B</figureCitation>
|
||
). Posterior peristomial ring, commonly known as collar, not covering radiolar bases (
|
||
<figureCitation id="135D54DBFF842B5889BF70A5FCCA3A97" box="[683,777,1678,1704]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1C</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B58880E70A5FC833A97" box="[794,832,1678,1704]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2D</figureCitation>
|
||
). Mid-ventral margin of collar incised, forming two rounded lappets (
|
||
<figureCitation id="135D54DBFF842B588A427099FE6C3AF3" box="[342,431,1714,1740]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1B</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B588AAE7099FE193AF3" box="[442,474,1714,1740]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2E</figureCitation>
|
||
) as long as chaetiger 1. Ventral sacs rounded, exposed outside radiolar crown (
|
||
<figureCitation id="135D54DBFF842B588E297099FA543AF3" box="[1341,1431,1714,1740]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1B</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B588B8370FDFF793ACF" box="[151,186,1750,1776]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2E</figureCitation>
|
||
). Lateral collar margin oblique (
|
||
<figureCitation id="135D54DBFF842B58893D70FDFD463ACF" box="[553,645,1750,1776]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1C</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B58898770FDFD7B3ACF" box="[659,696,1750,1776]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2A</figureCitation>
|
||
), elongate toward ventral side, exposing anterior peristomial ring (
|
||
<figureCitation id="135D54DBFF842B588B8B70D1FF383B2B" box="[159,251,1786,1812]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1C</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B588A1E70D1FEF33B2B" box="[266,304,1786,1812]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2D</figureCitation>
|
||
). Dorsal collar margins V-shaped, fused to faecal groove, forming dorsal pockets (
|
||
<figureCitation id="135D54DBFF842B588FC970D1FAFF3B2B" box="[1245,1340,1786,1812]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1A</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B588E5D70D1FA533B2B" box="[1353,1424,1786,1812]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2A–C</figureCitation>
|
||
). Anterior peristomial ring fully exposed above dorsal collar margins (
|
||
<figureCitation id="135D54DBFF842B5888847135FC2E3B07" box="[912,1005,1822,1848]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1A</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B5888E37135FBFC3B07" box="[1015,1087,1822,1848]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2A–C</figureCitation>
|
||
). Mid-dorsal margin of anterior peristomial ring triangular (
|
||
<figureCitation id="135D54DBFF842B588AC77169FDEE3B63" box="[467,557,1858,1884]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">Fig. 2B</figureCitation>
|
||
), visible once crown removed. Oval brownish peristomial moldures exposed beyond dorsal collar margins (
|
||
<figureCitation id="135D54DBFF842B588AED714DFD9A3BBF" box="[505,601,1894,1920]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1A</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B58897C714DFD733BBF" box="[616,688,1894,1920]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2A–C</figureCitation>
|
||
). Dorsal lips with mid-rib (radiolar appendages), dorsal pinnular appendages absent. Ventral lips ear-shaped. Ventral shield of collar well developed, almost trapezoidal (
|
||
<figureCitation id="135D54DBFF842B588E2E71A1FA543B9B" box="[1338,1431,1930,1956]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1B</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B588B837185FF793BF7" box="[151,186,1966,1992]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2E</figureCitation>
|
||
). Two diagonal glandular shields at the base of ventral lappets, separated from each other by mid-ventral incision of collar (
|
||
<figureCitation id="135D54DBFF842B588A1071F9FE9C3BD3" box="[260,351,2002,2028]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="1" pageNumber="49">Figs 1B</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF842B588A7871F9FE4C3BD3" box="[364,399,2002,2028]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="1" pageNumber="49">2E</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="DF1918D6FF872B5B8B83712BFE7F3BCF" ID-DOI="http://doi.org/10.5281/zenodo.13209691" ID-Zenodo-Dep="13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="2" pageNumber="50" startId="2.[151,250,1792,1816]" targetBox="[201,1391,181,1768]" targetPageId="2" targetType="figure">
|
||
<paragraph id="8BD9485EFF872B5B8B83712BFE7F3BCF" blockId="2.[151,1436,1792,2032]" pageId="2" pageNumber="50">
|
||
<emphasis id="B912944CFF872B5B8B83712BFED03B27" bold="true" box="[151,275,1792,1816]" pageId="2" pageNumber="50">FIGURE 1.</emphasis>
|
||
<taxonomicName id="4C6633DDFF872B5B8A0C712BFD713B27" authority="(Levenstein, 1961)" authorityName="Tovar-Hernandez & Jirkov" authorityYear="2024" baseAuthorityName="Levenstein" baseAuthorityYear="1961" box="[280,690,1792,1816]" class="Polychaeta" family="Sabellidae" genus="Potamethus" kingdom="Animalia" order="Sabellida" pageId="2" pageNumber="50" phylum="Annelida" rank="species" species="filatovae" status="comb. nov.">
|
||
<emphasis id="B912944CFF872B5B8A0C712BFE2C3B27" box="[280,495,1792,1816]" italics="true" pageId="2" pageNumber="50">Potamethus filatovae</emphasis>
|
||
(
|
||
<bibRefCitation id="EFF735AFFF872B5B8AEF712BFD6F3B27" author="Levenstein, R. Y." box="[507,684,1792,1816]" pageId="2" pageNumber="50" pagination="147 - 178" refId="ref10955" refString="Levenstein, R. Y. (1961) Polychaeta from deep water in the Bering Sea. Trudy Instituta Okeanologia, Akademia nauk SSSR, 46, 147 - 178. [in Russian]" type="journal article" year="1961">Levenstein, 1961</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A2212937FF872B5B89AC712AFCD03B27" box="[696,787,1792,1816]" pageId="2" pageNumber="50" rank="species">n. comb.</taxonomicNameLabel>
|
||
, lectotype stained with methylene blue. A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles. Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF1918D6FF862B5A8B8370F3FB4C3BD3" ID-DOI="http://doi.org/10.5281/zenodo.13209693" ID-Zenodo-Dep="13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="3" pageNumber="51" startId="3.[151,249,1752,1776]" targetBox="[241,1347,181,1728]" targetPageId="3" targetType="figure">
|
||
<paragraph id="8BD9485EFF862B5A8B8370F3FB4C3BD3" blockId="3.[151,1437,1752,2028]" pageId="3" pageNumber="51">
|
||
<emphasis id="B912944CFF862B5A8B8370F3FED13ACF" bold="true" box="[151,274,1752,1776]" pageId="3" pageNumber="51">FIGURE 2.</emphasis>
|
||
<taxonomicName id="4C6633DDFF862B5A8A0D70F3FD6D3ACF" authority="(Levenstein, 1961)" authorityName="Tovar-Hernandez & Jirkov" authorityYear="2024" baseAuthorityName="Levenstein" baseAuthorityYear="1961" box="[281,686,1752,1776]" class="Polychaeta" family="Sabellidae" genus="Potamethus" kingdom="Animalia" order="Sabellida" pageId="3" pageNumber="51" phylum="Annelida" rank="species" species="filatovae" status="comb. nov.">
|
||
<emphasis id="B912944CFF862B5A8A0D70F3FE2F3ACF" box="[281,492,1752,1776]" italics="true" pageId="3" pageNumber="51">Potamethus filatovae</emphasis>
|
||
(
|
||
<bibRefCitation id="EFF735AFFF862B5A8AED70F3FD643ACF" author="Levenstein, R. Y." box="[505,679,1752,1776]" pageId="3" pageNumber="51" pagination="147 - 178" refId="ref10955" refString="Levenstein, R. Y. (1961) Polychaeta from deep water in the Bering Sea. Trudy Instituta Okeanologia, Akademia nauk SSSR, 46, 147 - 178. [in Russian]" type="journal article" year="1961">Levenstein, 1961</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A2212937FF862B5A89A170F2FCCC3ACF" box="[693,783,1752,1776]" pageId="3" pageNumber="51" rank="species">n. comb.</taxonomicNameLabel>
|
||
, paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube. Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BD9485EFF812B5D8BD376BCFC593D22" blockId="4.[151,1437,151,897]" pageId="4" pageNumber="52">
|
||
Collar chaetae (chaetiger 1) composed of two groups of narrowly hooded chaetae (
|
||
<figureCitation id="135D54DBFF812B5D8F4B76BCFB1F3C8E" box="[1119,1244,151,177]" captionStart="FIGURE 3" captionStartId="5.[151,250,1792,1816]" captionTargetBox="[198,1390,181,1768]" captionTargetId="figure-32@5.[198,1390,181,1768]" captionTargetPageId="5" captionText="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." figureDoi="http://doi.org/10.5281/zenodo.13209695" httpUri="https://zenodo.org/record/13209695/files/figure.png" pageId="4" pageNumber="52">Figs 3A, B</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF812B5D8FF376BCFAE83C8E" box="[1255,1323,151,177]" captionStart="FIGURE 4" captionStartId="6.[151,250,1535,1559]" captionTargetBox="[151,1435,181,1512]" captionTargetId="figure-23@6.[151,1435,181,1512]" captionTargetPageId="6" captionText="FIGURE 4. Light microscopy of thoracic chaetae of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Collar chaetiger, B) narrowly hooded chaetae from collar, C) paleate chaetae, D) chaetiger 3, E) paleate chaetae." figureDoi="http://doi.org/10.5281/zenodo.13209697" httpUri="https://zenodo.org/record/13209697/files/figure.png" pageId="4" pageNumber="52">4A, B</figureCitation>
|
||
); superior group more longer than two times the length of the inferior group (
|
||
<figureCitation id="135D54DBFF812B5D88827690FC313CEA" box="[918,1010,187,213]" captionStart="FIGURE 3" captionStartId="5.[151,250,1792,1816]" captionTargetBox="[198,1390,181,1768]" captionTargetId="figure-32@5.[198,1390,181,1768]" captionTargetPageId="5" captionText="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." figureDoi="http://doi.org/10.5281/zenodo.13209695" httpUri="https://zenodo.org/record/13209695/files/figure.png" pageId="4" pageNumber="52">Fig. 3A</figureCitation>
|
||
). Thorax with 8 chaetigers (
|
||
<figureCitation id="135D54DBFF812B5D8E207690FA4D3CEA" box="[1332,1422,187,213]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="4" pageNumber="52">Fig. 1D</figureCitation>
|
||
). Ventral thoracic shields well developed, rectangular (
|
||
<figureCitation id="135D54DBFF812B5D89FD76F4FC813CC6" box="[745,834,223,249]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="4" pageNumber="52">Fig. 1D</figureCitation>
|
||
). Glandular ridge on chaetiger 2 visible only dorsally, broad, brownish in
|
||
<typeStatus id="54DDF6FCFF812B5D8A657728FE1B3D22" box="[369,472,259,285]" pageId="4" pageNumber="52" type="lectotype">lectotype</typeStatus>
|
||
(in some
|
||
<typeStatus id="54DDF6FCFF812B5D89537728FD2A3D22" box="[583,745,259,285]" pageId="4" pageNumber="52" type="paralectotype">paralectotypes</typeStatus>
|
||
hardly visible).
|
||
</paragraph>
|
||
<paragraph id="8BD9485EFF812B5D8BD3770CFE243E26" blockId="4.[151,1437,151,897]" pageId="4" pageNumber="52">
|
||
Thoracic notochaetae of chaetigers 2–8 with superior group of elongate narrowly hooded chaetae (
|
||
<figureCitation id="135D54DBFF812B5D8E0D770CFA5B3D7E" box="[1305,1432,295,321]" captionStart="FIGURE 3" captionStartId="5.[151,250,1792,1816]" captionTargetBox="[198,1390,181,1768]" captionTargetId="figure-32@5.[198,1390,181,1768]" captionTargetPageId="5" captionText="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." figureDoi="http://doi.org/10.5281/zenodo.13209695" httpUri="https://zenodo.org/record/13209695/files/figure.png" pageId="4" pageNumber="52">Figs 3C, D</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF812B5D8B837760FF783D5A" box="[151,187,331,357]" captionStart="FIGURE 4" captionStartId="6.[151,250,1535,1559]" captionTargetBox="[151,1435,181,1512]" captionTargetId="figure-23@6.[151,1435,181,1512]" captionTargetPageId="6" captionText="FIGURE 4. Light microscopy of thoracic chaetae of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Collar chaetiger, B) narrowly hooded chaetae from collar, C) paleate chaetae, D) chaetiger 3, E) paleate chaetae." figureDoi="http://doi.org/10.5281/zenodo.13209697" httpUri="https://zenodo.org/record/13209697/files/figure.png" pageId="4" pageNumber="52">4D</figureCitation>
|
||
) and with inferior group of paleate chaetae arranged in 3 rows (
|
||
<figureCitation id="135D54DBFF812B5D889F7760FBE93D5A" box="[907,1066,331,357]" captionStart="FIGURE 3" captionStartId="5.[151,250,1792,1816]" captionTargetBox="[198,1390,181,1768]" captionTargetId="figure-32@5.[198,1390,181,1768]" captionTargetPageId="5" captionText="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." figureDoi="http://doi.org/10.5281/zenodo.13209695" httpUri="https://zenodo.org/record/13209695/files/figure.png" pageId="4" pageNumber="52">Figs 3C, E–H</figureCitation>
|
||
,
|
||
<figureCitation id="135D54DBFF812B5D8F227760FBB83D5A" box="[1078,1147,331,357]" captionStart="FIGURE 4" captionStartId="6.[151,250,1535,1559]" captionTargetBox="[151,1435,181,1512]" captionTargetId="figure-23@6.[151,1435,181,1512]" captionTargetPageId="6" captionText="FIGURE 4. Light microscopy of thoracic chaetae of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Collar chaetiger, B) narrowly hooded chaetae from collar, C) paleate chaetae, D) chaetiger 3, E) paleate chaetae." figureDoi="http://doi.org/10.5281/zenodo.13209697" httpUri="https://zenodo.org/record/13209697/files/figure.png" pageId="4" pageNumber="52">4C–E</figureCitation>
|
||
). Bayonet chaetae absent. Thoracic uncini avicular, with handles 7–8 times longer than crest length (
|
||
<figureCitation id="135D54DBFF812B5D88FF7744FBFF3DB6" box="[1003,1084,367,393]" captionStart="FIGURE 3" captionStartId="5.[151,250,1792,1816]" captionTargetBox="[198,1390,181,1768]" captionTargetId="figure-32@5.[198,1390,181,1768]" captionTargetPageId="5" captionText="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." figureDoi="http://doi.org/10.5281/zenodo.13209695" httpUri="https://zenodo.org/record/13209695/files/figure.png" pageId="4" pageNumber="52">Fig. 3J</figureCitation>
|
||
); crest without hood, with 5–6 rows of teeth of nearly equal size above main fang, covering half of main fang (
|
||
<figureCitation id="135D54DBFF812B5D8F3C77B8FB403D92" box="[1064,1155,403,429]" captionStart="FIGURE 3" captionStartId="5.[151,250,1792,1816]" captionTargetBox="[198,1390,181,1768]" captionTargetId="figure-32@5.[198,1390,181,1768]" captionTargetPageId="5" captionText="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." figureDoi="http://doi.org/10.5281/zenodo.13209695" httpUri="https://zenodo.org/record/13209695/files/figure.png" pageId="4" pageNumber="52">Fig. 3K</figureCitation>
|
||
), and with a small hump on the angle between external margin of neck and handle (a slight swelling opposite to breast). Companion chaetae teardrop shaped, with a narrow dentate head and very long tip (+3 times longer than uncinal main fang), some tips distally enrolled (
|
||
<figureCitation id="135D54DBFF812B5D8A4877D4FE193E26" box="[348,474,511,537]" captionStart="FIGURE 3" captionStartId="5.[151,250,1792,1816]" captionTargetBox="[198,1390,181,1768]" captionTargetId="figure-32@5.[198,1390,181,1768]" captionTargetPageId="5" captionText="FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm." figureDoi="http://doi.org/10.5281/zenodo.13209695" httpUri="https://zenodo.org/record/13209695/files/figure.png" pageId="4" pageNumber="52">Fig. 3L–M</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BD9485EFF812B5D8BD37408FBD13F2A" blockId="4.[151,1437,151,897]" pageId="4" pageNumber="52">
|
||
Abdomen with 51 (26–58) chaetigers. Ventral abdominal shields well developed, oval, with marked brown margins, separated from each other by faecal groove (
|
||
<figureCitation id="135D54DBFF812B5D89F9746CFC813E5E" box="[749,834,583,609]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="4" pageNumber="52">Fig. 1E</figureCitation>
|
||
). Abdominal neurochaetae with two rows of narrowly hooded chaetae, those of inferior row three times shorter than those in superior row (
|
||
<figureCitation id="135D54DBFF812B5D8F667440FAF63EBA" box="[1138,1333,618,645]" captionStart="FIGURE 5" captionStartId="7.[151,250,1531,1555]" captionTargetBox="[151,1436,181,1507]" captionTargetId="figure-32@7.[151,1436,181,1507]" captionTargetPageId="7" captionText="FIGURE 5. Scanning electron and light microscopy images of abdominal chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Abdominal chaetiger 8 with inferior group of chaetae remarked with a rectangle, B–D) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 8; E) abdominal chaetiger 3, F) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 3, G) abdominal chaetiger 17, H) dentition of uncini from abdominal chaetiger 7, I) dentition of uncini from abdominal chaetiger 17, J) uncini from abdominal chaetiger 1, K) uncini from abdominal chaetiger 12, L) uncini from abdominal chaetiger 45, L). SEM:A–I. Light microscopy: J–L. Scale bars: A, E, G) 100 μm, B, C, F) 30 μm, D) 3 μm, H–L) 10 μm. Arrows in J and K point to uncinal humps." figureDoi="http://doi.org/10.5281/zenodo.13209701" httpUri="https://zenodo.org/record/13209701/files/figure.png" pageId="4" pageNumber="52">Fig. 5A–C, E–G</figureCitation>
|
||
); surface covered with fine bristles visible only under SEM (
|
||
<figureCitation id="135D54DBFF812B5D89F974A4FC893E96" box="[749,842,654,681]" captionStart="FIGURE 5" captionStartId="7.[151,250,1531,1555]" captionTargetBox="[151,1436,181,1507]" captionTargetId="figure-32@7.[151,1436,181,1507]" captionTargetPageId="7" captionText="FIGURE 5. Scanning electron and light microscopy images of abdominal chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Abdominal chaetiger 8 with inferior group of chaetae remarked with a rectangle, B–D) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 8; E) abdominal chaetiger 3, F) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 3, G) abdominal chaetiger 17, H) dentition of uncini from abdominal chaetiger 7, I) dentition of uncini from abdominal chaetiger 17, J) uncini from abdominal chaetiger 1, K) uncini from abdominal chaetiger 12, L) uncini from abdominal chaetiger 45, L). SEM:A–I. Light microscopy: J–L. Scale bars: A, E, G) 100 μm, B, C, F) 30 μm, D) 3 μm, H–L) 10 μm. Arrows in J and K point to uncinal humps." figureDoi="http://doi.org/10.5281/zenodo.13209701" httpUri="https://zenodo.org/record/13209701/files/figure.png" pageId="4" pageNumber="52">Fig. 5D</figureCitation>
|
||
). Abdominal uncini avicular with a small hump on the angle between external margin of neck and handle (a slight swelling opposite to breast) (
|
||
<figureCitation id="135D54DBFF812B5D8FA47498FAE63EF2" box="[1200,1317,690,717]" captionStart="FIGURE 5" captionStartId="7.[151,250,1531,1555]" captionTargetBox="[151,1436,181,1507]" captionTargetId="figure-32@7.[151,1436,181,1507]" captionTargetPageId="7" captionText="FIGURE 5. Scanning electron and light microscopy images of abdominal chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Abdominal chaetiger 8 with inferior group of chaetae remarked with a rectangle, B–D) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 8; E) abdominal chaetiger 3, F) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 3, G) abdominal chaetiger 17, H) dentition of uncini from abdominal chaetiger 7, I) dentition of uncini from abdominal chaetiger 17, J) uncini from abdominal chaetiger 1, K) uncini from abdominal chaetiger 12, L) uncini from abdominal chaetiger 45, L). SEM:A–I. Light microscopy: J–L. Scale bars: A, E, G) 100 μm, B, C, F) 30 μm, D) 3 μm, H–L) 10 μm. Arrows in J and K point to uncinal humps." figureDoi="http://doi.org/10.5281/zenodo.13209701" httpUri="https://zenodo.org/record/13209701/files/figure.png" pageId="4" pageNumber="52">Fig. 5J–K</figureCitation>
|
||
); breast as a narrow swelling, handles 2.5 times longer than crest length (
|
||
<figureCitation id="135D54DBFF812B5D884B74FCFC123ECE" box="[863,977,726,753]" captionStart="FIGURE 5" captionStartId="7.[151,250,1531,1555]" captionTargetBox="[151,1436,181,1507]" captionTargetId="figure-32@7.[151,1436,181,1507]" captionTargetPageId="7" captionText="FIGURE 5. Scanning electron and light microscopy images of abdominal chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Abdominal chaetiger 8 with inferior group of chaetae remarked with a rectangle, B–D) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 8; E) abdominal chaetiger 3, F) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 3, G) abdominal chaetiger 17, H) dentition of uncini from abdominal chaetiger 7, I) dentition of uncini from abdominal chaetiger 17, J) uncini from abdominal chaetiger 1, K) uncini from abdominal chaetiger 12, L) uncini from abdominal chaetiger 45, L). SEM:A–I. Light microscopy: J–L. Scale bars: A, E, G) 100 μm, B, C, F) 30 μm, D) 3 μm, H–L) 10 μm. Arrows in J and K point to uncinal humps." figureDoi="http://doi.org/10.5281/zenodo.13209701" httpUri="https://zenodo.org/record/13209701/files/figure.png" pageId="4" pageNumber="52">Fig. 5J–L</figureCitation>
|
||
), main fang surmounted by 4–5 rows of nearly equal-size teeth above main fang, covering half of main fang (
|
||
<figureCitation id="135D54DBFF812B5D888974D0FBC63F2A" box="[925,1029,762,789]" captionStart="FIGURE 5" captionStartId="7.[151,250,1531,1555]" captionTargetBox="[151,1436,181,1507]" captionTargetId="figure-32@7.[151,1436,181,1507]" captionTargetPageId="7" captionText="FIGURE 5. Scanning electron and light microscopy images of abdominal chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A) Abdominal chaetiger 8 with inferior group of chaetae remarked with a rectangle, B–D) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 8; E) abdominal chaetiger 3, F) details of narrowly hooded chaetae of inferior group from abdominal chaetiger 3, G) abdominal chaetiger 17, H) dentition of uncini from abdominal chaetiger 7, I) dentition of uncini from abdominal chaetiger 17, J) uncini from abdominal chaetiger 1, K) uncini from abdominal chaetiger 12, L) uncini from abdominal chaetiger 45, L). SEM:A–I. Light microscopy: J–L. Scale bars: A, E, G) 100 μm, B, C, F) 30 μm, D) 3 μm, H–L) 10 μm. Arrows in J and K point to uncinal humps." figureDoi="http://doi.org/10.5281/zenodo.13209701" httpUri="https://zenodo.org/record/13209701/files/figure.png" pageId="4" pageNumber="52">Fig. 5J–I</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BD9485EFF812B5D8BD37534FD9E3FBE" blockId="4.[151,1437,151,897]" pageId="4" pageNumber="52">
|
||
Pygidium with terminal anus (
|
||
<figureCitation id="135D54DBFF812B5D89317534FDBA3F06" box="[549,633,799,825]" captionStart="FIGURE 1" captionStartId="2.[151,250,1792,1816]" captionTargetBox="[201,1391,181,1768]" captionTargetId="figure-23@2.[196,1391,181,1768]" captionTargetPageId="2" captionText="FIGURE 1. Potamethus filatovae (Levenstein, 1961) n. comb., lectotype stained with methylene blue.A) Peristomial moldures and first three thoracic chaetigers, dorsal view, B) collar and base of radiolar crown, ventral view, C) base of radiolar crown, peristomium and first three thoracic chaetigers, lateral view, D) thorax, ventral view, E) mid-abdominal segments, ventral view, F) posterior end, dorsal view, G) distal ends of radioles.Abbreviations: apr—anterior peristomial ring, fg—faecal groove switch, pl—parallel lamella, pm)—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars: A–C, F) 500 um, D) 2 mm, E) 1 mm, G) 2.5 mm. White arrow and asterisk in B points to the incised mid-ventral margin of collar." figureDoi="http://doi.org/10.5281/zenodo.13209691" httpUri="https://zenodo.org/record/13209691/files/figure.png" pageId="4" pageNumber="52">Fig. 1F</figureCitation>
|
||
) and two lateral rounded papillae, visible in some
|
||
<typeStatus id="54DDF6FCFF812B5D8FDC7534FAA93F06" box="[1224,1386,799,825]" pageId="4" pageNumber="52" type="paralectotype">paralectotypes</typeStatus>
|
||
and mentioned in the original description, and without anal cirrus. Tubes silty, smooth, fragile (
|
||
<figureCitation id="135D54DBFF812B5D8FB07568FAC33F62" box="[1188,1280,835,861]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="4" pageNumber="52">Fig. 2G</figureCitation>
|
||
). One tube of
|
||
<typeStatus id="54DDF6FCFF812B5D8B83754CFEED3FBE" box="[151,302,871,897]" pageId="4" pageNumber="52" type="paralectotype">paralectotype</typeStatus>
|
||
with eggs inside (
|
||
<figureCitation id="135D54DBFF812B5D8AEE754CFD933FBE" box="[506,592,871,897]" captionStart="FIGURE 2" captionStartId="3.[151,249,1752,1776]" captionTargetBox="[241,1347,181,1728]" captionTargetId="figure-32@3.[236,1352,181,1728]" captionTargetPageId="3" captionText="FIGURE 2. Potamethus filatovae (Levenstein, 1961) n. comb., paralectotypes stained with methylene blue. A) Peristomium and first three thoracic chaetigers, latero-dorsal view, B) peristomium and first three thoracic chaetigers, dorsal view, C) base of radiolar crown, peristomium and first two thoracic chaetigers, dorsal view, D) base of radiolar crown and collar, lateral view, E) base of radiolar crown and collar, ventral view, F) internal wall of tube with oocytes, G) worm partially exposed from tube.Abbreviations: apr—anterior peristomial ring, pl—parallel lamella, pm—peristomial moldure, vs—ventral sacs, vsc—ventral shield of collar. Numbers: 1, 2, 3 …—number of chaetigers. Scale bars:A, B) 1.25 mm, C–E) 500 um, F–G) 2.5 mm. Black arrow in B points to the triangular, mid-dorsal margin of anterior peristomial ring. Black arrow and asterisk in E points to the incised mid-ventral margin of collar, other two black arrows points to the diagonal glandular shields at the base of ventral lappets." figureDoi="http://doi.org/10.5281/zenodo.13209693" httpUri="https://zenodo.org/record/13209693/files/figure.png" pageId="4" pageNumber="52">Fig. 2F</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |